@Kari ji,
@"Sharat Sir-VK Inventor" ji always guide us not to think about past life or karma we should just focus on present moment and doing new good karmas.
Please must read this article
https://www.litairian.com/past-surface-vibbes-kada/
About your queries you can please take GOLDEN SUNRISE and BALANCE SERUM for sometimes. Balance serum also helps to remove all etheric chodes and balance life in present situation.
You can also give ALL CLEAR SERUM to any past event or memory that disturibing you at present.
Sometimes random thoughts and memories disturb our mind very much then please use BRAIN SERUM and CALM DOWN SERUM to stop unwanted thought patterns.
You can also watch Video by Sir in this link.